22940364973 has 4 divisors (see below), whose sum is σ = 23018660028. Its totient is φ = 22862069920.

The previous prime is 22940364971. The next prime is 22940364991. The reversal of 22940364973 is 37946304922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37946304922 = 2 ⋅18973152461.

It can be written as a sum of positive squares in 2 ways, for example, as 21262889124 + 1677475849 = 145818^2 + 40957^2 .

It is a cyclic number.

It is not a de Polignac number, because 22940364973 - 2¹ = 22940364971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940364971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39147088 + ... + 39147673.

It is an arithmetic number, because the mean of its divisors is an integer number (5754665007).

Almost surely, 2^22940364973 is an apocalyptic number.

It is an amenable number.

22940364973 is a deficient number, since it is larger than the sum of its proper divisors (78295055).

22940364973 is an equidigital number, since it uses as much as digits as its factorization.

22940364973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78295054.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 22940364973 in words is "twenty-two billion, nine hundred forty million, three hundred sixty-four thousand, nine hundred seventy-three".